Electrical water-heater.



G` M. LAIRD.

ELECTRICAL WATER HEATER.

. APPLICATION FILED AuG.23, 1915. 1,188,952

Patented J une 27; 1916. A

. SHEETS-SHEET l.

GUY M. LPHRD l vlll...

e. M. LAIRD.

ELECTRICAL WATER HEATER.

APPLICATION FILED AUG-23| |915.

Patented June 27, 1916.A

2 SHEETS-SHEET 2.

1:] D vwanto GUY M. Lamo siriane PATENT OFFICE.

GUY MRG'AN LA'lR-Z), OF'HILLSBORO, LLNGS, ASSIGNOB OF ONE-HALF T0 LEO B.

' LNCOLN, 0F CHICAGD, LLNs.

ELECTRCAL WATERJ-EATER.

Specification of Letters Patent.

To all 'whom it may concern Be it known that l, GUY lit. LAIRD, a citizen of the United States, residing at Hilleboro, in the county oit Montgomery and State of illinois, have ini/'exited certain new and useful improvements in` Electrical Water-Heaters, ot' which the following is a specification, reference beinghad :to the accompanying drawings.

This invention relates to electrical water heaters and. has for its primary object to provide a` device of this character which 1s so constructed that the saine may he read ily moved troni a to place and attached to a water ai f t, ed device including electrical heatingv rnd means for causing a circuitous :tiow oit-the water so that the saine will be higlny heated before passing into 'the outlet. n

The invention has lf-oi' an additional obgect to provide ancl 'ii water heater which inay be either oi. the portable or stationary type and in. r inch th '3e is embodied one er more electr' resistance elements included in the heat circuit, and. spirally coiled wire .reds having,n their coils arranged in reverse directions so as to cause a eircuitous liow et the water substantially along the entire length ot the resistance, wherebyD the same will become highly heated, one et the coiled rods serving te direct the heated was ter into the outlet.

'lt is a further object of the invention to provide an electrical `waterl heater of the above type, which consists oi very few parts capable ot being quickly assembled or d1s assembled and in which the several coper-l ating elements are very compactly arranged so that the entire heater may be carried 1n a suitcase or hand bag.,

vlli/lith the above and other objects 1n View, my invention consists in the novel features of construction, combination and arrangement 'et parts to be herelnatter incre fully described, claimed and illustrated in the accompanying drawings, in which,

Figure 1 is a vertical sectional view of an eiectrieal water heater illustrating the preferred embodiment of the invention; Fig.

2 is a section taken on the line 2 2 of Fig.

`1; Fig. 3 is a vertical sectioh 'showing a4 slightly' modiiied term of the invention;

Fig. i is a vertical sectionai yview taken at night angles to Fig, 3; Fig. 15 is a horiaontal section taken `on the linerv of Flg. `35

Fig. G is a horizontal section, illustrating a further modification of the device.

Referring in detail to the drawings and more particularly to Figs. 1 and 2 thereof, 5 designates the outer casing or shell, the lower open end of which is adapted to Abe closed by a'reniovable vthreaded bottom plate or cap 6. This outer shell 5 is exterior-ly threaded at its up )er end for the connection of a detachable head 7 thereto. This head :is equipped with an electric ,switch of any approved type, S designating the movable element of the switch which projects exteriorly of the head 'l'. The upper end of the casing 5 is closed by the head plate 9 which is formed with a threaded opening to receive an `inner removable. resistance container or holder 10. This resistance container includes an outer cylindrical shell 1l which is integrally connected at its lower end to the inner concentrically spaced shell 12. The upper end of the outer shell 11 is exteriorly threaded for engagement in the threaded opening of the head plate 9 on the outer casing. The lower end of the inner shell 1Q is open and in communication with the interior of the casing 5 which constitutes a water receiving chamber 13. Adjacent to the upper en'd .of the casing 5, the same is provided upon one side with an outwardly extending inlet nipple 14, to which one end of a tube or hose 15 is adapted to be connected. The other end of this tube is provided with suitable means for connecting the same to a water faucet. 16 designatesx the water outlet pipe which is centrally threaded in the bottom plate or cap 6 of the casing and extends upwardly within the inner lshell 12 of the resistance container, the upper open end of said pipe being spaced from the closed upper end of Said shell. A spirally coiled wire rod 17 is arranged within the casing '5 and Surrounds the shell 11, said coils contacting with the shell. A second smallerl coiled wire rod 18 is also arranged within the inner shell 11 and around the outlet pipe 1G. It Will be observed that the coils of this rod are reversely turned lwith respect to the coils of the outer rod 17. Be,- tween the inner and outer walls 11 and I2,

.a resistance element, indicated at 19, is arnaten'teu June av, 191e.

cated at 2Q 21 designates the conducting; wires and 22 a plug which ie to lie engaged in the lamp eoeltet oli" a lighting eil' cuit` It is, however, apparent that a eeparate or independent eleetro circuit may he proviclecl il' desired. lWheu the eleetrie chf-- cuit is closed, the resistance element l@ ie Soon heatetl to a high temperature aia/l the Walls of the inner and outeif shells lli aufl 23 thus also become highly heateclL ll/hen the ratei' is turned ou, the same is tiret directe-nl downwardly in the eaeiuof 5 by the rume el? the coiled wire rofl lh This water flowing; upwardly into the innen shell lil is @aus l to flow around. the outlet Talpe l@ hy the spiral rod 18. By the time the watel' reaches the upper end of this outlet pipe, it is obvious that the Same will 'become highly heated, as it is., at all. times, iu coii'taet with one or the otherI of the @helle ll or 12. The coiled rod 18 liually` clirecte the het water into the upper eucl of the outlet pipe 1G, from which is tllschargefl :lute a howl or basin. The tempeia-itui-e et i rte-i may be varied aud oouti'olleol hy opeuiug the faucet to a greater. or lees exteut so that the water will slowly low dewi'iwartlly anal thou; upwardly to the' outlet pipe lli aud become very highly heated or llow more rapidly that the watei. may Contact with. 'the Walle of the shells lll and l2 for a eompaiatlveljf" short length oi': time before being flisehargell into the outlet pipe. l

In Figs. 3, l and 5 I have illustrated a slightly modified. form of; the iut/e wherein the l'lat type of metal ree grids 23 is employed. Two of th grida,

metallically eouneetetl their louer miele.,V are arranged .ui parallel relation. wit 5u l casing of the heater amel upon the oppoe'te sides of lthe central longitudinal plate 2li; which is lixed at one of its ends to the closed upper end 25 of the easing and spacetl at ite lower end from the removable bottom plate or cap. Each of the reeietauee grids ie cased within au insulating material and the upper ends of the metal grids are insulated from the end wall 25 of the heater caeiug, ae shown at 27, and connected to the switch within the removable head of the heater cae ing. 28 designates the outletY pipe which extends upwardly, through the removable closure cap on the lower end ort the easingl and within said easing to a point adjacentits u per end. It will he noted 'that the lon` gitu inal edges of the resistance grids are spaced from the Wall of the heater easing while the central longitudinal division plates; 24- extends A cliametrically across the same and contacts with the hoily walls of the casing. Thus, when the Water is admitted to the upper end ofthe caelug, it will :How downwardly around one of the resistance grids and. then around the lower cud oit the plate 24.- aud upwardly around the othei.'

ed. water will e outlet pi e Q8. j, l have eiiown er or holrler oonsietng ehell i553' lil with. ln-

' L` celled resietf lu ahy of the iou above rela@ ,ood that, iik' de 1f the heater casing euitahle 'valve so oil and the water reater or less Aion,y tal'cen 'in u. d raw- .lly um l have prow iuetilui o; electrimy loe .'iployed in uw ightiug cirhe readily oh` for all purhea ei' @ouu eoaipaetly aloe, it will he eouVeuieutly` f `Lee auclvtransthe use of ig the iT/atm' olf the ewiteh :lu the areal; that the heater with the ou. Ey giving a iu-wahl llow to the` lu er., the salme is` 'num extent of .l aheorh all the l n le from "the tahoe elementf o epu'al guides also serve as heat contlue'tore, as they ilu Contact with the' walls of th container. The (leqi-foueljy" used iu eon- 1 lary houee li'ht'uugcilj y 'without placing an ex# upon the eireuit, although, of cours-1e, a el longer time will be rel quirefl l .ae proper heating of the lwater than il? a segjlarate uml liet/inet electrical cirile l haie alveare reitmired to the pre# l c milledimeut o" imalution at preseut coute iulateoh je umh *Stood that the device ie eu? of etlll futther elia ,e le. the form, eY ztluetir'm and ax",- rauggeuieut of the sere *ehie arid I, there- "fetey re'f'erve l;lie-;gurivile e of adopting 'all euel. legitimate l.iofru'litiealbume my be ieee i. cuit oit .low volta; ceeelve flemme.

fairly embodied within the spirit and scope of the invention as claimed.

Having thus fully described my invention, what I desire to claim and secure by Letters Patent is l. An electricalwater heater including a casing having` heads on its opposite ends and a water inlet port in one side of said casing adjacent the top thereof, a water outlet pipe extending longitudinally into the casing through the bottom of the same and having its open end disposed adjacent to the top of the casing, electrical heating means mounted in the top head of the casing and extending longitudinally Within said casing, and additional means Within the casing between the outlet pipe and said heating means to retard the flow 'of the water in its passage from the inlet upwardly in the casing and into said outlet pipe.

' 2. An electrical Water heater including a casing, water supply means connected to thel side of the casing adjacent its top, a double- Walled shell arranged Within said casing in spaced concentric relation thereto, an outlet pipe extending through the bottom of the casing and axially into the shell, the open end of said pipe being also disposed adjacent the top of the casing, an electrical resistance arranged between the Walls of said shell, and means for directing the Water exteriorly and interiorly of the double- Walled shell and finally into the outlet pipe. 3. An'electrical Water heater including a casing, Water supply casing, a double-Walled shell mounted Within the casing in spaced concentric relation thereto, the inner wall of the shell being open at its lower end and closed at its upper end, a water outlet pipe extending axially into the shell and having its open end disposed adjacent to the closed end thereof, an electrical resistance arranged between the Walls of the shell, means arranged exteriorly of said shell and contacting. with the outer wall thereof for directing the Water in a circuitous path around the shell and in one direction, and additional means arranged Within the shell around the outlet pipe and in contact with the inner Wall of the shell to direct the water in an opposite direction and into the open end of the outlet pipe.

In testimony whereof I hereunto ailix my signature in the presence of two Witnesses. GUY MORGAN LAIRD. Witnesses:

HENRY R. CRAWFORD, EDNAH G. GORDON.

means connected to the 

